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Annotation of funnyos/libkern/string.c, Revision 1.1.1.1

1.1       init        1: /*
                      2:  * $Id: string.c,v 1.1.1.1 2007/10/12 08:40:38 init Exp $
                      3:  */
                      4: #include <sys/types.h>
                      5: #include <libkern/string.h>
                      6:
                      7: int
                      8: strncmp(const char *s1, const char *s2, const uint32_t len)
                      9: {
                     10:        /*
                     11:         * Compare len characters of string s1 with len characters of s2.
                     12:         * Return first difference's position or 0 if no differencies.
                     13:         */
                     14:        uint32_t        i;
                     15:
                     16:        /* TODO ugly algorhitm; rewrite */
                     17:
                     18:        for(i = 0; i < len; i++) {
                     19:                if(s1[i] != s2[i])
                     20:                        return(i + 1);
                     21:
                     22:                if(s1[i] == '\0')
                     23:                        /* \0 encountered, but strings are identical */
                     24:                        return(0);
                     25:        }
                     26:
                     27:        return(-1);
                     28: }
                     29: